In the above example, a MBTiles file toulouse-voirie.mbtiles will be created with all rendered tiles. (Note: This won't render UTF-Grid tiles, since TileMill does not expose this part in the XML stylesheet.)

If you don't have Mapnik2 installed, you might encounter rendering errors like : AssertionError: Cannot render tiles without mapnik !.

Installation of Mapnik 2

Mapnik2 packages on Debian/Ubuntu

In Ubuntu Precise (12.04) or Debian Wheezy (7.0), it's a piece of cake, the package is available in the repos